#!/usr/bin/env bash

source .env

print_usage_instruction() {
	echo "Ensure that .env file exist in project root directory exists."
	echo "And run the following 'composer install-wp-tests' in the project root directory"
	exit 1
}

if [[ -z "$TEST_DB_NAME" ]]; then
	echo "TEST_DB_NAME not found"
	print_usage_instruction
else
	DB_NAME=$TEST_DB_NAME
fi
if [[ -z "$TEST_DB_USER" ]]; then
	echo "TEST_DB_USER not found"
	print_usage_instruction
else
	DB_USER=$TEST_DB_USER
fi

DB_HOST=${TEST_DB_HOST-localhost}
DB_PASS=${TEST_DB_PASSWORD-""}
WP_VERSION=${WP_VERSION-latest}
TMPDIR=${TMPDIR-/tmp}
TMPDIR=$(echo $TMPDIR | sed -e "s/\/$//")
WP_TESTS_DIR=${WP_TESTS_DIR-$TMPDIR/wordpress-tests-lib}
WP_CORE_DIR=${TEST_WP_ROOT_FOLDER-$TMPDIR/wordpress/}
PLUGIN_DIR=$(pwd)
DB_SERVE_NAME=${DB_SERVE_NAME-wpgatsby_serve}
SKIP_DB_CREATE=${SKIP_DB_CREATE-false}

download() {
    if [ `which curl` ]; then
        curl -s "$1" > "$2";
    elif [ `which wget` ]; then
        wget -nv -O "$2" "$1"
    fi
}

if [[ $WP_VERSION =~ ^[0-9]+\.[0-9]+\-(beta|RC)[0-9]+$ ]]; then
	WP_BRANCH=${WP_VERSION%\-*}
	WP_TESTS_TAG="branches/$WP_BRANCH"

elif [[ $WP_VERSION =~ ^[0-9]+\.[0-9]+$ ]]; then
	WP_TESTS_TAG="branches/$WP_VERSION"
elif [[ $WP_VERSION =~ [0-9]+\.[0-9]+\.[0-9]+ ]]; then
	if [[ $WP_VERSION =~ [0-9]+\.[0-9]+\.[0] ]]; then
		# version x.x.0 means the first release of the major version, so strip off the .0 and download version x.x
		WP_TESTS_TAG="tags/${WP_VERSION%??}"
	else
		WP_TESTS_TAG="tags/$WP_VERSION"
	fi
elif [[ $WP_VERSION == 'nightly' || $WP_VERSION == 'trunk' ]]; then
	WP_TESTS_TAG="trunk"
else
	# http serves a single offer, whereas https serves multiple. we only want one
	download http://api.wordpress.org/core/version-check/1.7/ /tmp/wp-latest.json
	grep '[0-9]+\.[0-9]+(\.[0-9]+)?' /tmp/wp-latest.json
	LATEST_VERSION=$(grep -o '"version":"[^"]*' /tmp/wp-latest.json | sed 's/"version":"//')
	if [[ -z "$LATEST_VERSION" ]]; then
		echo "Latest WordPress version could not be found"
		exit 1
	fi
	WP_TESTS_TAG="tags/$LATEST_VERSION"
fi
set -ex

install_wp() {

	if [ -d $WP_CORE_DIR ]; then
		return;
	fi

	mkdir -p $WP_CORE_DIR

	if [[ $WP_VERSION == 'nightly' || $WP_VERSION == 'trunk' ]]; then
		mkdir -p $TMPDIR/wordpress-nightly
		download https://wordpress.org/nightly-builds/wordpress-latest.zip  $TMPDIR/wordpress-nightly/wordpress-nightly.zip
		unzip -q $TMPDIR/wordpress-nightly/wordpress-nightly.zip -d $TMPDIR/wordpress-nightly/
		mv $TMPDIR/wordpress-nightly/wordpress/* $WP_CORE_DIR
	else
		if [ $WP_VERSION == 'latest' ]; then
			local ARCHIVE_NAME='latest'
		elif [[ $WP_VERSION =~ [0-9]+\.[0-9]+ ]]; then
			# https serves multiple offers, whereas http serves single.
			download https://api.wordpress.org/core/version-check/1.7/ $TMPDIR/wp-latest.json
			if [[ $WP_VERSION =~ [0-9]+\.[0-9]+\.[0] ]]; then
				# version x.x.0 means the first release of the major version, so strip off the .0 and download version x.x
				LATEST_VERSION=${WP_VERSION%??}
			else
				# otherwise, scan the releases and get the most up to date minor version of the major release
				local VERSION_ESCAPED=`echo $WP_VERSION | sed 's/\./\\\\./g'`
				LATEST_VERSION=$(grep -o '"version":"'$VERSION_ESCAPED'[^"]*' $TMPDIR/wp-latest.json | sed 's/"version":"//' | head -1)
			fi
			if [[ -z "$LATEST_VERSION" ]]; then
				local ARCHIVE_NAME="wordpress-$WP_VERSION"
			else
				local ARCHIVE_NAME="wordpress-$LATEST_VERSION"
			fi
		else
			local ARCHIVE_NAME="wordpress-$WP_VERSION"
		fi
		download https://wordpress.org/${ARCHIVE_NAME}.tar.gz  $TMPDIR/wordpress.tar.gz
		tar --strip-components=1 -zxmf $TMPDIR/wordpress.tar.gz -C $WP_CORE_DIR
	fi

	download https://raw.github.com/markoheijnen/wp-mysqli/master/db.php $WP_CORE_DIR/wp-content/db.php
}

install_db() {

	if [ ${SKIP_DB_CREATE} = "true" ]; then
		return 0
	fi

	# parse DB_HOST for port or socket references
	local PARTS=(${DB_HOST//\:/ })
	local DB_HOSTNAME=${PARTS[0]};
	local DB_SOCK_OR_PORT=${PARTS[1]};
	local EXTRA=""

	if ! [ -z $DB_HOSTNAME ] ; then
		if [ $(echo $DB_SOCK_OR_PORT | grep -e '^[0-9]\{1,\}$') ]; then
			EXTRA=" --host=$DB_HOSTNAME --port=$DB_SOCK_OR_PORT --protocol=tcp"
		elif ! [ -z $DB_SOCK_OR_PORT ] ; then
			EXTRA=" --socket=$DB_SOCK_OR_PORT"
		elif ! [ -z $DB_HOSTNAME ] ; then
			EXTRA=" --host=$DB_HOSTNAME --protocol=tcp"
		fi
	fi

	# create database
	RESULT=`mysql -u $DB_USER --password="$DB_PASS" --skip-column-names -e "SHOW DATABASES LIKE '$DB_NAME'"$EXTRA`
	if [ "$RESULT" != $DB_NAME ]; then
			mysqladmin create $DB_NAME --user="$DB_USER" --password="$DB_PASS"$EXTRA
	fi
}

configure_wordpress() {
    cd $WP_CORE_DIR
    wp config create --dbname="$DB_NAME" --dbuser="$DB_USER" --dbpass="$DB_PASS" --dbhost="$DB_HOST" --skip-check --force=true
    wp core install --url=wp.test --title="WPGatsby Tests" --admin_user=admin --admin_password=password --admin_email=admin@wp.test
    wp rewrite structure '/%year%/%monthnum%/%postname%/'
}

setup_wpgraphql() {
	if [ ! -d $WP_CORE_DIR/wp-content/plugins/wp-graphql ]; then
		echo "Cloning WPGraphQL"
		wp plugin install https://github.com/wp-graphql/wp-graphql/releases/download/${WPGRAPHQL_VERSION}/wp-graphql.zip
	fi
	echo "Activating WPGraphQL"
	wp plugin activate wp-graphql

}

setup_plugin() {
	# Add this repo as a plugin to the repo
	if [ ! -d $WP_CORE_DIR/wp-content/plugins/wp-gatsby ]; then
		ln -s $PLUGIN_DIR $WP_CORE_DIR/wp-content/plugins/wp-gatsby
		cd $WP_CORE_DIR/wp-content/plugins
		pwd
		ls
	fi

	cd $WP_CORE_DIR

    wp plugin list

	# activate the plugin
	wp plugin activate wp-gatsby

	# Flush the permalinks
	wp rewrite flush

	# Export the db for codeception to use
	wp db export $PLUGIN_DIR/tests/_data/dump.sql
}

install_wp
install_db
configure_wordpress
setup_wpgraphql
setup_plugin